html,
body {
    margin: 0;
    padding: 0;
}

body {
    background: #171717;
    color: #999;
    font: 100%/18px helvetica, arial, sans-serif;
}

a {
    color: #2fa1d6;
    font-weight: bold;
    text-decoration: none;
}

a:hover {
    color: #fff;
}

#canvas-container {
    background: #000 url(https://jackrugile.com/lab/fireworks-v2/images/bg.jpg);
    height: 400px;
    left: 50%;
    margin: -200px 0 0 -300px;
    position: absolute;
    top: 50%;
    width: 600px;
    z-index: 2;
}

canvas {
    cursor: crosshair;
    display: block;
    position: relative;
    z-index: 3;
}

canvas:active {
    cursor: crosshair;
}

#skyline {
    background: url(https://jackrugile.com/lab/fireworks-v2/images/skyline.png) repeat-x 50% 0;
    bottom: 0;
    height: 135px;
    left: 0;
    position: absolute;
    width: 100%;
    z-index: 1;
}

#mountains1 {
    background: url(https://jackrugile.com/lab/fireworks-v2/images/mountains1.png) repeat-x 40% 0;
    bottom: 0;
    height: 200px;
    left: 0;
    position: absolute;
    width: 100%;
    z-index: 1;
}

#mountains2 {
    background: url(https://jackrugile.com/lab/fireworks-v2/images/mountains2.png) repeat-x 30% 0;
    bottom: 0;
    height: 250px;
    left: 0;
    position: absolute;
    width: 100%;
    z-index: 1;
}

#gui {
    right: 0;
    position: fixed;
    top: 0;
    z-index: 3;
    display: none;

}